ERROR: A character operand was found in the %EVAL function or %IF condition where a numeric operand is required. The condition was

[harshalshah]

libname bci "/department/gld/uk/shahha03";
libname pdlref "/department/gld/uk/HK_MANNINGS_DC/pdl/ref/" ;
%macro bci_period(start_wk,end_wk);
data _null_;
set pdlref.time_cycle;
if week_id= &start_wk then do;
call symput("id_start",time_pd);
end;
if week_id = &end_wk then do;
call symput("id_end",time_pd);
end;
run;
%put &id_start &id_end;
%put &id_start &id_end;
data _null_;
set pdlref.time_cycle;
format week_id_end yymmddn8.;
id_end1 = &id_end+1;
do i = &id_start to &id_end;
id_end1 = id_end1 -1;
if time_pd = id_end1 then do;
call symput(cat('wkno',i),week_id);
call symput (cat('wkedno',i),PUT(week_id_end,YYMMDDn8.));
end;
end;
run;

%mend;

%macro bci_mnn;
%do i = &id_start %to &id_end;
%let wk=&&wkno&i;
%let wk1 =&&wkedno&i;
%put &wk1;
%let fileloc=/department/gld/uk/HK_MANNINGS_DC/rawdata/input/wk&&wk/original;
filename bci_mnn PIPE "zcat &fileloc./bci_mnn_&wk1.000000.dat.gz";
/*%let wk2 = cat('bci_mnn_',&wk1,'000000');*/
data work.bci_mnn_&wk (compress=yes);
length
retailer_basket_id $ 9
retailer_store_number $ 6
retailer_loyalty_card_id $ 13
retailer_coupon_id $ 13
retailer_promotion_id $ 6
time_key $ 8    
member_group_code $ 17 
member_group_code_type $ 1
coupon_printed $ 1
;
infile bci_mnn dsd missover dlm='|' end=eof;
/*infile "&fileloc./bci_mnn_&wk1.000000.dat" dsd missover dlm='|' end=eof;*/
input
retailer_basket_id $
retailer_store_number $
retailer_loyalty_card_id $
retailer_coupon_id $
retailer_promotion_id $
time_key $
member_group_code $
member_group_code_type $
coupon_printed $
;
week_id = &wk;
run;

proc sql noprint;
create table bci.BCI_MNN_&wk as
select bsk.*,cust.retailer_household_id from work.bci_mnn_&wk as bsk left join pdlref.customer as cust on bsk.retailer_loyalty_card_id = cust.retailer_identifying_card_id;
quit;
%end;
%mend;

%macro bci_yyyyww;
%let startwk =201425;
%let endwk =201428;
%bci_period(&startwk,&endwk);
%bci_mnn;
%mend;
%bci_yyyyww;

WARNING: Apparent symbolic reference ID_START not resolved.

ERROR: A character operand was found in the %EVAL function or %IF condition where a numeric operand is required. The condition was:

       &id_start

ERROR: The %FROM value of the %DO I loop is invalid.

WARNING: Apparent symbolic reference ID_END not resolved.

ERROR: A character operand was found in the %EVAL function or %IF condition where a numeric operand is required. The condition was:

       &id_end

ERROR: The %TO value of the %DO I loop is invalid.

ERROR: The macro BCI_MNN will stop executing.

While I apply macro variable inside %macro bci_period(start_wk,end_wk);

%bci_mnn;

%mend;

Program running fine and resolve this issue..can anyone says why call symput (ID_start & ID_end) value may not able to resolve...my question here if I created loop macro variable using call symput which is easily coming  during the program even though did not modify any syntax..

[RW9]

I would suggest that this condition:

if week_id= &start_wk then do;

doesn't resolve at any point to be true, hence the call symput is not run and ID_START is never defined.  The likelihood is that the call:

%let startwk =201425;

%let endwk =201428;

%bci_period(&startwk,&endwk);

when looked in combination with the if statement resolves to:

if week_id=201425 then do;

Which doesn't work.  If your sure that week_id is character and contains a value for 201425, then put quotes around the macro variable and retry:

if week_id="&start_wk." then do; 

This should then find a row.

However if week_id is numeric then you may need to convert it to the numeric type of week_id, e.g.

if put(week_id,yymm6.) = "&start_wk." then do;